全新版 大学英语 快速阅读第一册 Unit8素文整理.docx

全新版 大学英语 快速阅读第一册 Unit8素文整理.docx

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全新版大学英语快速阅读第一册Unit8素文整理

Unit8

I.Directions:

Readthefollowingpassages,andthenselectthebestchoiceforeachofthequestionsorincompletestatements.

Passage1

快速阅读自查表

阅读和练习应完成的时间：

5分22秒

实际完成时间：

做对的练习题数记录：

Oneofthegreatestmysteriesinbiology-howthemonarchbutterfly（帝王蝶）travelsthousandsofkilometersonitsyearlymigration（迁移）-hasjustbeensolved.

Monarchbutterfliesusethesuntosettheirbodyclocksandmaketheirjourneys,accordingtoUSscientists.NootherbutterflyintheworldmigratesliketheorangeandblackmonarchsofNorthAmerica.Theycannotliveforlongperiodsincoldweather.Eachautumn,thousandstravelupto3,000kmtospendthewinterinthemountainsofMexico.Therearesomany,theyalmostblockoutthesky,andyoucanheartheirwingsbeating.

ItusuallytakesthebutterfliestwomonthstoreachMexico.Afterstayingfivemonths,theyheadbackupnorthinthespring.Butnotonebutterflyfinishesthewholeround-trip.Theylayeggsalongthewayanddie.

Threegenerationsofbutterflieswillliveanddieduringthespringjourneyalone.Thefourthandfinalgenerationoftheyearisborninearlyautumnandwillreachthenorth.ButithardlygetstorestbeforestartingthelongjourneysouthtoMexico.

ThemostamazingthingaboutthesebutterfliesisthattheyreturntotheverysametreeinMexicothattheirgreat-great-grandparentsusedthewinterbefore.Paststudieshaveshownthattheinsectsusethesunasacompass（指南针）toshowthemtheway.Butexpertsareunsurehowthebutterflieschangetheirdirectionasthesunmovesinthesky.

Thisnewstudynowshowsthattheinsectsusea“circadian（生理节奏的）”clockintheirbodiesaspartoftheirsuncompass.Inlaboratorytests,monarchbutterflieswerefoundtoflyintherightdirectionundernormaldaylighthours.Butthoseflyingin24-hourlightheadedstraighttowardsthesun.Thatis,theynolongerhadanysenseoftime.

ScientistStevenReppert,wholedtheresearch,said:

“Wehaveshowntheneedforthecircadianclockformonarchbutterflymigration.Whentheclockisinterrupted,monarchsareunabletoflytowardsMexico.”

（Words:

334）

1.Whatisthefocusofthepassage?

A）Monarchbutterflies’yearlymigration.

B）Theuniquelivingstyleofmonarchbutterflies.

C）Theguidanceofthesuninmonarchbutterflies’navigation.

D）Monarchbutterfliesusebodyclocksaspartoftheirsuncompass.

2.Whichofthefollowingstatementsistrueaboutmonarchbutterflies?

A）EachautumntheyflynorthtoNorthAmerica.

B）InspringtheyflysouthtoMexico.

C）Onlyafewofthemcanfinishtheroundtrip.

D）Theircolorisorangeandblack.

3.Themostsurprisingfindingaboutthebutterfliesisthat________.

A）notonebutterflyfinishesthewhole-roundtrip

B）theycanfindthesametreeinMexicothattheirgreat-great-grandparentsusedthewinterbefore

C）ittakesaslongastwomonthsforthebutterfliestoflytoMexico

D）theyusethesunasacompass

4.Whatcanbelearnedfromthepassageaboutpaststudiesandthenewdiscovery?

A）Paststudiesdiscoveredthenewfunctionofabodyclock.

B）Thenewstudydiscoverstheuseofthesunasacompass.

C）Thenewdiscoverythrowslightonanoldmystery.

D）Paststudiesshowedhowthebutterfliescouldchangedirection.

5.Whatwasfoundinthelaboratory?

A）Monarchbutterflieslosttheirsenseoftime.

B）Thesunwasnotimportantintheirmigration.

C）Butterfliesflyingin24-hourlightlosttheirsenseoftime.

D）Theirbodyclockswereinterruptedbythesun.

Passage2

快速阅读自查表

阅读和练习应完成的时间：

5分45秒

实际完成时间：

做对的练习题数记录：

Atpresent,therearemanywaystotravel,thatis,wecanchoosedifferentwaystogotosomeplace.

InChina,moreandmorepeoplehavetheirowncars.Therefore,theroadsaregettingbusierandbusierandsometimestherearemanytrafficjams,especiallyinthebigcities.Howcanwesolvethisproblem?

Ontheearththepopulationisgrowinglargerandlargerandtherewillbelessandlessspace.Sosomescientistsaretryingtomakeanewkindofcar-aflyingcar.Aflyingcarisacarthatnotonlyrunsontheroad,butalsofliesintheskywheneverthereisheavytraffic.Itisjustlikeabat（蝙蝠）,asithaswings.Whenthecarrunsontheground,thewingsarefolded.However,whenitflies,thewingsareunfolded.Itcanflyattheheightof1,500-3,000meters,anditcanflyatthespeedof600kilometersperhour.

Therewillbeanotherkindoftraininthefuture.Maybeitwillbecalledthe“flyingtrain”-itlookslikeaplane,butithasnowings.Itcanrunnearthegroundbutitdoesn’ttouchtheground.Itwillbemuchfasterthananytraincurrentlyavailable.AJapanesescientistsaysthiskindofflyingtraincanbemadebytheyear2020.

So,perhapsitispossiblethatcarsandtrainscanflyintheskyinthefuture.Actually